Abstract:
A method for transmitting control information by a base station in a wireless communication system is provided. The method includes determining a precoder to be applied to a resource and a Demodulation Reference Signal (DMRS) port, the resource being used to transmit the control information, and the DMRS port corresponding to the resource and being used to transmit a DMRS, precoding the resource and the DMRS port by using the determined precoder, and transmitting the control information and the DMRS to a user equipment.
Abstract:
A data transmission method and an apparatus in a network supporting coordinated multipoint transmission are provided. The method includes transmitting candidate sets of initial state information used to generate Demodulation Reference Signal (DMRS) scrambling sequences for the transmission points to the UE, and transmitting an indication corresponding to at least one candidate set of initial state information respectively associated with at least one transmission point to the UE, wherein the initial state information is used by the UE to generate DMRS scrambling sequences.
Abstract:
A control channel transmission/reception method and an apparatus for transmitting/receiving control channels using a resource allocation scheme applicable regardless of reference signal transmission or whether the reference signal is transmitted in distributed transmission mode or localized transmission mode are provided. The control channel transmission method includes mapping a Demodulation Reference Signal (DMRS) to Resource Elements (REs) of a Resource Block (RB) for transmitting a control channel, mapping the control channel to the REs numbered with numbers of predetermined number of Resource Element Groups (REGs) in a frequency-first ascending order cyclically, with the exception of the REs to which the DMRS is mapped, and transmitting the DMRS and the control channel.
Abstract:
A channel estimation method and apparatus are provided for a terminal in a cellular mobile communication system including a plurality of base stations. The method includes maintaining a maximum number of CSI processes supported by the UE; receiving CSI process report information; determining a number of CSI to be updated based on the maximum number of CSI processes supported by the UE; generating at least one CSI report based on the determined number of CSI to be updated; and transmitting the at least one CIS report to an evolved Node B (eNB).
Abstract:
A method performed by a terminal in a wireless communication system includes receiving, from a base station via a radio resource control (RRC) signaling, information indicating a number N of code block groups per transport block (TB), wherein a code block group comprises at least one code block, receiving, from the base station, control information scheduling data, receiving, from the base station, the data on a physical downlink shared channel (PDSCH) based on the control information, the data including code block groups of a TB, generating hybrid automatic repeat request (HARQ) feedback information for the code block groups of the TB, the code block groups of the TB being identified based on a number of code blocks (CBs) for the TB and the number N of code block groups per TB, and transmitting the HARQ feedback information to the base station, wherein a bit size of the transmitted HARQ feedback information is identical to the number N of the code block group per TB.
Abstract:
The present disclosure relates to a communication technique for combining, with IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, and the like on the basis of 5G communication technologies and IoT-related technologies. A method of a transmitting terminal, according to an embodiment of the present invention, comprises the steps of: receiving, from a receiving terminal, channel state information (CSI) determined on the basis of channel busy ratio (CBR) information, and the CBR information; determining a transmission parameter on the basis of the CSI; and transmitting the transmission parameter to the receiving terminal.
Abstract:
Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. A power control method for uplink transmission in a wireless cellular communication system is disclosed.
Abstract:
The disclosure relates to a communication technique for fusing a 5th generation (5G) or pre-5G communication system with IoT technology to support higher data rates after a 4th generation (4G) communication system such as long term evolution (LTE) and a system thereof. The disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, etc.) based on 5G communication technology and IoT-related technology. According to various embodiments of the disclosure, a method and apparatus for allocating time and frequency resources for smoothly providing a service are provided.
Abstract:
The disclosure relates to a communication technique that converges a 5G communication system to support a higher data rate after a 4th Generation (4G) system with Internet of Things (IoT) technology, and a system thereof. The disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, or the like) based on 5th Generation (5G) communication technology and IoT related technology. In addition, the disclosure provides a method and an apparatus for reducing user equipment (UE) power consumption in a wireless communication system.
Abstract:
The disclosure relates to a communication technique that converges a 5G communication system for supporting a higher data rate after a 4G system with IoT technology, and a system thereof. The disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety related services, and the like) based on 5G communication technology and IoT related technology. The disclosure discloses a method and device for a terminal to perform satellite communication.